sparc, raw splice on end of disk

orange47 · May 16, 2011, 2:25pm

I noticed we have a small splice on end of disk that is not mounted. What could that be and how do we move it few sectors?
Thanks.

bartus11 · May 16, 2011, 2:27pm

Small slices (approximately 8-16MB) are used by SVM to store database replicas. Check if it is your case by running:

metadb -i

If you see your slice in the output, then better don't touch it

orange47 · May 16, 2011, 2:32pm

Ah, its probably that. Can I move it after booting from CDROM using dd?

bartus11 · May 16, 2011, 2:35pm

You can't copy the contents of that slice using dd. If you want to do anything with the slice, you have to remove it first from SVM using

metadb -d /dev/rdsk/your_slice

orange47 · May 17, 2011, 4:39am

hm that metadb is used for RAID?

but there is no second hard disk in server, so that slice is redundant?

bartus11 · May 17, 2011, 4:48am

Post output of:

metadb -i
metastat -a

orange47 · May 18, 2011, 2:50am

the output of both commands is "there are no existing databases"

bartus11 · May 18, 2011, 3:06am

Then the slice is not in use by SVM. If it is not present in /etc/vfstab, then there is great chance that it is not used by anything.